To add a bit more information about this, Newgrounds moderators don't really take down animations unless they are rule-breaking. Movie guidelines can be found here:
https://www.newgrounds.com/wiki/help-information/terms-of-use/movie-guidelines
The community decides whether an animation stays or gets blammed. It is a community vote for submissions that are under judgement in the portal.
Damianito
When an animation gets a score below 1,75/5 stars it gets blammed. If you want your animations to stay on NG you need to make them good.
JOANIMATES1
Thanks for the info